Singeing apparatus



T. F. HUSSA.

SINGEiNG APPARATUS. 7 APPLICATION FILED JAN. 15. ms.

l INVENTORJ Patented Apr. 12. 1921.

UNITED STATES THEODORE F. HUSSA, OF MONTCLAIR, NEW JERSEY.

SINGEING APPARATUS.

Specification of Letters Patent.

Patented Apr. 12, 1921.

Application filed January 15, 1918. Serial No. 211,917.

To all ro/tom it may concern:

Be it known that i, Tnuononn F. Hesse, a citizen of the United States, residing at Montclair in the county of Essex and State of New Q ersey, have invented certain new and useful improvements in Singeing Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings, which form a part thereof.

My invention relates to singeing apparatus and more particularly to such an apparatus particularly adapted for use in the removing of fluff from threads.

A singeing apparatus made in accordance with my invention is so constructed to induce an air current having a very low rate of flow about the singeing element, in a manner to prevent the accumulation of incinerated particles of fluff, removed from the thread, upon or about said element, and at the same time maintain substantially uniform temperature conditions throughout the entire length of the trough'ed member of the singeing element. In order to insure a more rapid and more thorough singeing of the thread, and avoid any tendency of the extinguishment of the flame emanating from the resistance member, this member is inclosed in a manner to direct the air across the top edges of the troughed portion thereof, the inclosing means having air openings s disposed to prevent the development of air jets which would impinge upon said member in a manner to have a tendency to cool same. The manner of inclosing the resistance member is such as to maintain substantially uniform temperature conditions throughout the entire length thereof. It is essential that the trough of the resistance member be arranged with its axis extending substantially vertically, and it is preferable to so arrange the various parts as to have the induced air current, flow counter to the natural draft, a condition tending to temper the air circulated about the resistance member and permit the development of an air current having the desired low rate of flow; and cause this air current to supplement the action of gravity in removing the larger incinerated particles of fluff from adjacent the resistance member.

The invention consists primarily in a singeing apparatus embodying therein a troughed resistance member mounted upon an extended base, and having its axis extending substantially Vertically, a casing ncloslng said resistance member having air nlet passages adjacent one end, and extending substantially the full length, of said troughed member, and an air outlet passage ad acent the other end of said member, said casing belng so formed as to direct air across the top edges of said troughed member, a condu1t communicating with the air outlet passage of said casing, and means creating sub-atmospheric pressure in said conduit whereby an induced current of air at a low rate of flow, is created about said element; and in such other novel features of constructlon and combination of parts, as are hereinafter set forth and described, and more particularly pointed out in the claims hereto appended.

Referring to the drawings:

Figure 1 is a front elevation of a portion of a machine disclosing the essential characteristic of my invention; and

Fig. 2 is a section on the line 2-2 of Fig. 1 upon a larger scale.

Like letters refer to like parts in both views.

In the embodiment of the invention shown in the drawings, I have illustrated only that portion of a thread singeing machine to which my invention relates, the spool supporting and thread rewinding mechanisms included in apparatus of this character, not being related in their functionings, to the singeing elements and their appurtenances.

In the drawings, I have shown at a and b, the ordinary bus-bars through which the current for making the various singeing elements incandescent, is drawn.

The singeing element shown in the drawings, comprises a base 0 of insulating mate rial having mounted thereon and electrically connected with said bus-bars, a troughed resistance member (Z, the base block c e:; tending laterally beyond said troughed member.

A plurality of singeing elements are included in a machine, all arranged upon the same horizontal plane, the member (Z on each of these elements being positioned with the axis of the trough extending vertically. Below the various elements is a trunk conduit 6 having extension conduits f terminating below each of the elements, the top of the conduits bein closed exce tin for an opening 7 in substantial alinement with the troughed member (Z cooperating therewith. The trunk conduit 0 has mounted therein, or is in communication with, a suitable suction device, as the fan 9, capable of creating an induced circulation of air at a low rate of flow, throughout the entire apparatus.

Mounted upon each of the extension conduits f is a casing h of a length to project above the upper end of, and substantially inclose, the sides of said casing extending upon a curve into close proximity to the base block 0, as shown in the drawings.

The casing h is mounted upon the exten sion conduit 7 by means of a hinge, as h, or in any other manner which will permit the movement of the casing away from the singeing element. l

Adjacent the hinge h is an eye 2' through which the thread passes to the rewinding mechanism.

The sides of the casing it are spaced away from the block 0 sufiiciently to admit air within said plate and about the resistance member Z for substantially the entire length of saidmembcr, the upper end of said casing projecting beyond said member so as to admit air above said member. The curved sides of said plate extend about the opening 7 in the conduit 7. By this construction, a continuous current of air having a low rate of'flow enters the conduit 7 from within the casing 72. through the opening f, said plate serving to direct the air in a manner to secure the desired operative effect of the flame from the troughedmember of the singeing element upon the thread passing through said member. i

. The extension conduits f and the singeing element associated with each, are multiplied in a singeing apparatus to an extent to secure the desired capacity in said apparatus, Each singeing. element operates entirely independently of every other element in its fu'nctionings, however, the sole variance in the structure of the apparatus made necessary by the use of different numbers of singeii T elements. being in the capacity of the trunk conduit 0, or of the fan 5 or both.

The operation of the'herein described apparatus is substantially as follows In threading the apparatus, the casing 70 moved away from the singeing element, and a thread is passed vertically ot the troughed portion of the resistance member and connected with the rewinding mechanism in the usual manner. The circuit to the bus-bars a and Z) is then closed bringing the various resistance members cZto a state of incandescence.v The flame from these resistance members will remove the fluff from the threads, the particles of incinerated fluii being sufficiently light to have a tendency to 7 float in the air about the singeing element,

or to pass upwardly as the result of convection, about the slngeing element, partiem larly when the resistance member has associated therewith an inclosing casing. There would also be amarked' tendency of these particles of fluff to be deposited upon the resistance member itself, which would have the effect of fouling this member in a manner to lessen its efficiency.

By creating and maintaining a continuous, inducedair current having a low rate of flow, through the casing 7L and substantially axially of the troughed portion of the resistance member (Z, the particles of fluff removed from the thread enter this air current and are carried away from the element thereby said particles having natural tendency when first removed from thethread, to fly outwardly of said troughed portion.

admitting air upon opposite sides of the troughed portion for substantially the full length thereoi as well as at one end thereof, I am not only enabled'to' avoid jets oi? air which will impinge upon different parts ot the resistance member, but am en abled to admit a sufiicient volume of air about the element to insure the maintenance of the desired air current, having a slow rate of flow and also to temper the air about the element in a manner to promote combustion and equalize the temperature conditionsat all points of the element.

As the air enters the casing through the side and end openings thereof it will have both a vertical and a lateral component of motion which will tend to impart a whirling action thereto this gentle whirl of air having a tendency to Wrap the flame from the resistance member, about the top ot-the thread passing through the troughed por above the trough and have a tendency to carry the discharged particles of flutl away from the thread and the trough. This action is insured by forming the opposite edges of the inclosing casing in an overhung curve, so as to cause the casing itself togive direction to the incoming air.

It air were admitted only at one end of the resistance member, thetemperature conditions within the inclosing casing would be different at difiierent points in the length of said member, the greatest temperature being adjacent the opening f through which the extension conduit 7 communicates with the space about the singeing element within said casing. By providing side openings, however, that portion of the volume of air passing through the. casing, admitted through the side open ings, will tend to reduce the temperature of the air within the casing at all points thereof, in proportion to the normal tendency of this air to become heated. The air admitted h opening and. c nsequently having the shortest distance to travel, is admitted at a point where the temperature of the air will be normally at its highest. This prevents the development of excessive temperature about any portion of the resistance member.

The arrangement of parts by which the air current flows counter to a natural draft, has the two-fold advantage of in suring the rapid removal of the particles of incinerated fluff (since this current supplements the action of gravity) and utilizing the products of combustion, which have a normal tendency to rise by passing them along the entire length of the element with a resultant tempering of the volume of in coming air, and the equalization of temperature conditions above referred to.

It is not my intention to limit the invention to the precise details ofconstruction shown in the accompanying drawings, it being apparent that such may be varied without departin from the spirit and scope of the invention.

The essential characteristic of my inven tion is an apparatus so constructed as to utilize a current of air about the resistance member of the singeing element for the purpose of securing the proper temperature conditions about this element and removing the incinerated particles of flufl without developing an air jet impinging upon any portion of the element, since I have found that such an air jet has the effect of extinguishing the flame from the resistance member, and making it impossible to remove fluff particles from the thread.

Having described the invention what I claim as new and desire to have protected by Letters Patent is z- 1. A singeing apparatus embodying therein an extended base, a troughed resistance member mounted thereon, and having its axis extending substantially vertically, a casing inclosing said resistance member having air inlet passages adjacent one end, and extending substantially the full length, of said troughed member, and an air outlet passage adjacent the other end of said member, said casing being so formed as to direct air across the top edges of said troughed memher, a conduit communicating with the air outlet passage of said casing, and means creating sub-atmospheric pressure in said conduit whereby an induced current of air at a low rate of flow, is created about said resistance member.

2. A singeing apparatus embodying there in an extended base, a troughed resistance member mounted thereon, and having its axis extending substantially vertically, a casing extending across said resistance mem her and having its opposite sides terminating in close proximity to, but spaced away from, said base, said casing being open at the top and bottom thereof, whereby air inlet passages are formed at one end and for substantially the length of each side of said resistance member, and an air outlet passage is formed at'the other end thereof, a conduit communicating with the air outlet pas sage of said casing, and means creating sube atmospheric pressure in said conduit whereby an induced current of air at a low rate of flow, is created about said resistance member.

3 A singeing apparatus embodying therein an extended base, a troughed resistance member mounted thereon, having its axis extending substantially vertically, a casing inclosing said resistance member having air inlet passages adjacent the top and extending substantially the full length of each side of said troughed member, and having an open bottom, said casing being so formed as to direct air across the top edges of said troughed member, a conduit communicating with the space within said casing adjacent the bottom thereof, and means creating subatmospheric pressure in said conduit whereby an induced current of air at a low rate of flow, is created about said resistance member.

l. A- sin geing apparatus embodying therein an extended base, a troughed resistance member mounted thereon having its axis extending substantially vertically, a casing extending across said resistance member and having its opposite sides terminatin in close proximity to, but spaced away rom said base, said casing being open at the top and bottom thereof, whereby air inlet passages are formed at one end and for substantially the length of each side of said resistance member, and an air outlet passage is formed at the other end thereof, a conduit communicating with the air outlet passage of said casing, and means creating subatmospheric pressure in said conduit where by an induced current of air at a low rate of flow, is created about said resistance member.

5. A singeing apparatus embodying therein a trunk conduit having a plurality of extension conduits, each of said extension conduits having associated therewith an extended base, a troughed resistance member mounted thereon and having its axis extending substantially vertically, a casing inclosing said resistance member having air inlet passages adjacent one end and extendingsubstantially the full length of opposite sides of said troughed member, and an air outlet passage adjacent the other end of said member, said casing being so formed as to direct air across the top edges of said troughed member, and an air outlet passage of said casing being in communication with the extension conduit cooperating therewith, and means whereby sub-atmospheric pressure is developed in said trunk conduit.

6. A singeing apparatus embodying therein a trunk conduit having a plurality of extension conduits, each of said extens on conduits-having associated therewith an extended base, a troughed resistance member mounted on and having its opposite sides terminating in close proximity to, but spaced away from said base, said casing being open at the top and bottom thereof, whereby air inlet passages are formed at one end and for substantially the length of each side of said resistance member and an air voutlet passage is formed at the other end thereof, said air outlet passage being in communication with the extension conduit cooperating therewith, and means whereby subatmospheric pressure is developed in said trunk conduit.

7 A singeing apparatus embodying therein a trunk conduit having a plurality of extension conduits, each of said extension conduits having associated therewith an extended base, a troughed resistance member having air inlet passages adjacent the top and extending substantially the full length of each side of said troughed member, and having an open bottom, said casing being so formed as to direct air across the top edges of said troughed member, the extension conduit cooperating therewith communicating with the space within said casing adjacent the bottom thereof, and means whereby sub-atmospheric pressure is developed in said trunk conduit.v I

8. A singeing apparatus embodying therein a trunk conduit having a plurality of extension conduits, each of saidextension conduits having associated therewith an extended base, a troughed resistance member and having its opposite sides terminating signature, in the presence of two subscrib- I ing witnesses, this 19th day of December, 1917.

THEODORE F. HUS'SA.

Witnesses:

BERTHA MUELLER, CLARIoE FRANCK. 

